10 20 30 40 50 60 CUGGGGCCCCGAGACAG- -| C CGC U C U AGGGGAC CC GGCCC GCC CCAGUGU CAGACUAC UGU C U GG CCGGG CGG GGUUACA GUCUGAUG ACA G C CAGGCAGCACGGCGACCG C^ U AUU C - U UGUAGAC 120 110 100 90 80 70